[gtk+] Add braces to appease gcc

[Benjamin Otte <otte src gnome org>]

commit 35c96c2c1f15c6c2a52a380ef6b8fa1062597b8d
Author: Benjamin Otte <otte redhat com>
Date:   Thu Aug 25 23:01:28 2016 +0200

    Add braces to appease gcc
    
    -ftrack-macro-expansion=0 doesn't like if statements without braces when
    evaluating indentation levels.

 gtk/gtkcomposetable.c |    4 +++-
 gtk/gtkcssselector.c  |   12 +++++++++---
 gtk/gtksizerequest.c  |    6 ++++--
 3 files changed, 16 insertions(+), 6 deletions(-)
---
diff --git a/gtk/gtkcomposetable.c b/gtk/gtkcomposetable.c
index 7a0aba7..7b45dfb 100644
--- a/gtk/gtkcomposetable.c
+++ b/gtk/gtkcomposetable.c
@@ -573,7 +573,9 @@ gtk_compose_table_serialize (GtkComposeTable *compose_table,
                  (long long) (p - contents), total_length);                   \
       g_free (contents);                                                      \
       if (count)                                                              \
-        *count = 0;                                                           \
+        {                                                                     \
+          *count = 0;                                                         \
+        }                                                                     \
       return NULL;                                                            \
     }
 
diff --git a/gtk/gtkcssselector.c b/gtk/gtkcssselector.c
index 9309de5..d3bcc79 100644
--- a/gtk/gtkcssselector.c
+++ b/gtk/gtkcssselector.c
@@ -507,11 +507,17 @@ gtk_css_selector_ ## n ## _add_specificity (const GtkCssSelector *selector, \
                                             guint                *elements) \
 { \
   if (increase_id_specificity) \
-    (*ids)++; \
+    { \
+      (*ids)++; \
+    } \
   if (increase_class_specificity) \
-    (*classes)++; \
+    { \
+      (*classes)++; \
+    } \
   if (increase_element_specificity) \
-    (*elements)++; \
+    { \
+      (*elements)++; \
+    } \
 } \
 \
 static const GtkCssSelectorClass GTK_CSS_SELECTOR_ ## c = { \
diff --git a/gtk/gtksizerequest.c b/gtk/gtksizerequest.c
index ed60b43..1dd3671 100644
--- a/gtk/gtksizerequest.c
+++ b/gtk/gtksizerequest.c
@@ -351,8 +351,10 @@ gtk_widget_query_size_for_orientation (GtkWidget        *widget,
                                     : "height for width",
                                     for_size, min_size, nat_size);
            if (min_baseline != -1 || nat_baseline != -1)
-             g_string_append_printf (s, ", baseline %d/%d",
-                                     min_baseline, nat_baseline);
+              {
+                g_string_append_printf (s, ", baseline %d/%d",
+                                        min_baseline, nat_baseline);
+              }
            g_string_append_printf (s, " (hit cache: %s)\n",
                                    found_in_cache ? "yes" : "no");
             g_message ("%s", s->str);